Fertility Treatments

TSH Spike After Stims

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cec726 wrote:

Hi! I was put on synthroid a few months ago for slightly elevated TSH. My level went down well and was under 1.0 right before I started stims. I had my retrieval a little over a week ago and today my level was 3.35! Is that normal? I'm doing PGS. I'll find out next week if we have any normal embryos. If we do I want to prep for transfer ASAP. I'm worried my TSH will delay things.

It has happened with both of my transfers. I cannot get answers from my RE, GP, or OBGYn as to why it is happening. In my last transfer my baseline bloodwork showed tsh as .1, one week after meds it was 3.5. I am on Levo and my RE tells me to have my GP increase the meds, she won't increase them until I have several draws done. So needless to say it has been a struggle. My transfers werent stopped but I have no idea if it was cause for the failures. Good luck to you! I hope you can get better answers than I did.

My TSH also increased after stims, after having been stable for awhile. I don't really require an "explanation" for it...to me, the medication is the obvious explanation...especially since I've heard the same thing from other women. My primary care doc upped my thyroid meds, but after taking a few months off from IVF my level was very low on the increased dosage so my doc has me only taking half a pill one day a week and regular dosage the other 6 days. Now I just know to keep an eye on it. I'm about to start another round of IVF so why bother dropping my dosage now...I'll just monitor.

Right. My only concern is that when they raise the meds it takes weeks for it to actually take effect. The explanation I was looking for was "is my thyroid levels the cause of the failures". Its a tough situation. My levels are fine when not on meds and then jump pretty fast, definitely faster than a raised dosage will work. Its just a crappy disease to deal with. I have been hypo for 8 years.

From what I read increased estrogen can make you not absorb thyroid hormone as well, thus your thyroid stimulating hormone (tsh) increases to tell your body to make more thyroid hormone. Under 2 is recommended for ttc, but technically anything under 4 is fine. I would think your RE would be able to tell you if increased estrogen is what might be causing your tsh to go up.

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